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Radeon HD 7790 vs Radeon RX 560

Intro

The Radeon HD 7790 comes with a GPU core speed of 1000 MHz, and the 1024 MB of GDDR5 memory is set to run at 1500 MHz through a 128-bit bus. It also features 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Compare that to the Radeon RX 560, which comes with a core clock speed of 1175 MHz and a GDDR5 memory frequency of 7000 MHz. It also features a 128-bit bus, and uses a 14 nm design. It is comprised of 1024 SPUs, 64 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560 80 Watts
Radeon HD 7790 85 Watts
Difference: 5 Watts (6%)

Memory Bandwidth

In theory, the Radeon RX 560 should perform a small bit faster than the Radeon HD 7790 overall. (explain)

Radeon RX 560 114688 MB/sec
Radeon HD 7790 96000 MB/sec
Difference: 18688 (19%)

Texel Rate

The Radeon RX 560 will be a lot (about 34%) more effective at AF than the Radeon HD 7790. (explain)

Radeon RX 560 75200 Mtexels/sec
Radeon HD 7790 56000 Mtexels/sec
Difference: 19200 (34%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 560 is a better choice, but it probably won't make a huge difference. (explain)

Radeon RX 560 18800 Mpixels/sec
Radeon HD 7790 16000 Mpixels/sec
Difference: 2800 (18%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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Radeon HD 7790

Amazon.com

Check prices at:

Radeon RX 560

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 7790 Radeon RX 560
Manufacturer AMD AMD
Year March 2013 May 2017
Code Name Bonaire XT Baffin
Memory 1024 MB 4096 MB
Core Speed 1000 MHz 1175 MHz
Memory Speed 6000 MHz 28000 MHz
Power (Max TDP) 85 watts 80 watts
Bandwidth 96000 MB/sec 114688 MB/sec
Texel Rate 56000 Mtexels/sec 75200 Mtexels/sec
Pixel Rate 16000 Mpixels/sec 18800 Mpixels/sec
Unified Shaders 896 1024
Texture Mapping Units 56 64
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 14 nm
Transistors 2080 million 3000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 7790

Amazon.com

Check prices at:

Radeon RX 560

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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